This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to connect pc to tv wirelessly 
Plug the transmitter into your computer. 
You will need to use the usb mini cable included with the product. This will power the device.

Available options:
[1]. Check to make sure the wi-fi connection is working. Most devices have radio-detecting instructions on the back of the unit..
[2]. Alternatively, you can also use the power adapter to plug into a wall socket if you aren't going to be moving around. Plug the hdmi cable into the transmitter and into your computer's video card..
[3]. Choose which channel you would like to broadcast to. You can only broadcast from all 6 channels..
[4]. Make sure both the headphone jack and dvds on your unit and usb cables are turned on. This will help you connect the samsung dvd to your television..
The answer is:
[2].